Levitating Soul Gem in a Neon Subway Tunnel

A large glowing soul gem levitates in the middle of a dim subway tunnel. The scene is drawn in a bold cartoon style with thick black outlines, bright saturated colors, and simplified shapes. Concrete tunnel walls are covered in vibrant graffiti; flickering neon lights along the ceiling cast colorful reflections on the rails. The soul gem emits translucent blue energy wisps, sparkles, and tiny musical-note motifs. In the foreground, a curious character in a hoodie watches from the edge of the platform, eyes wide with wonder. Perspective is slightly from below, looking down the tunnel toward the gem, conveying a sense of magical discovery and playful adventure.